The effects of different fruit bags on the maturity and quality of grape are different.In order to explore the effects of bagging grapes bunches with yellow-black bags,a grape variety Yinhong was used in this experiment. For Yinhong grape,bagging with yellow-black bags could effectively extend the harvest period,avoid high temprerature and sunburn,but there were color difference and sugar low.Six kinds of different bagging and bag-removing methods were carried out with white bags and yellow-black bags. The ...